William D. Coolidge: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Anniversary information added. | Jan 30, 2026 | ||
| Anniversary information added. | Oct 19, 2025 | ||
| First paragraph modernization. | Feb 23, 2024 | ||
| Invalidated site: National Museum of American History - Biography of William D. Coolidge. | May 24, 2022 | ||
| Add new Web site: Lemelson-MIT - Biography of William Coolidge. | May 20, 2022 | ||
| Add new Web site: The Franklin Institute - Biography of William D. Coolidge. | Mar 26, 2019 | ||
| Add new Web site: Engineering and Technology History Wiki - Biography of William Coolidge. | Feb 24, 2017 | ||
| Add new Web site: Edison Tech Center - Biography of William D. Coolidge. | Feb 09, 2017 | ||
| Add new Web site: The New York Times - William D. Coolidge, Inventor, 101, Dies. | Feb 09, 2017 | ||
| Added "William David Coolidge" as a title variant. | Apr 18, 2012 | ||
| Added new Web site: Massachusetts Institute of Technology - William D. Coolidge. | Sep 27, 2007 | ||
| Added new Web site: National Museum of American History - Biography of William D. Coolidge. | Sep 27, 2007 | ||
| Article added to new online database. | Jul 20, 1998 |
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